Wire reducing



April 7, 1925.

L. G. BREGUET ET AL WIRE REDUQING Sheets-Sheet 1 April 7, 1925. 1,532,873

1 G. BREGUET ET AL WIRE REDUCING Filed Dec. 5, 1921 2 Sheets-Sheet 2 .iatented Apr. 7, 1925.

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Application filed December 5, 18521. Serial lo. 520,110.

To aZZ wilma Z may Coface/"a:

Be it linown that we, Louis 'AGUsTAvn lhufioun'r and PAUL ALBERT BRGUET, citizens et the Republic of Switzerland, residing at Geneva, Switzerland, have invented certain new and uset'ul improvements in vlire Reducing, ol which the following is a specilication.

'Ehe present invention relates to a wireorawing machine of the kind wherein a rotating swaging mechanism is employed with a rotating head carrying radially movable dies.

The object of my invention is to provide means for facilitating the continuous rcduction of wire from very large' diameters to relatively very small diameters; and to that end, I provide a pair ot rotating haininers having stepped working laces, the successive steps being connected by conical portions.

One to 'in of machine embodying. the present improvements is illustrated by way et example in the vaccompany drawing, wherein:

Figure l is a side elevation of said machine.

Fig. 2 is a detail view in vertical section, showing the wind-up reel and its driving means.

Fig. 3 is a face View of the hammering mechanism.

F ig. 4 is a sectional view taken axially of the hammers.

Fig. 5 is a plan view of Fig. l.

In the form of machine represented, it 'will be assumed that the metal has already been converted into wire, the diameter' ot "which is to be further reduced; and that this reduced wire7 which is designated i, is wound up on a reel j located at one end of the frame Z' of the machine7 and is designed to .be unwound therefrom, fed through the machine and ultimately rewound, after having undergone the hammering treatment7 upon a reel s at the other end of the frame. o

The wind-up reel s is fixed to a horizontal shaft e', suitably journaled and supported in the frame and driven from a main shaft u through the intermediary ot helicoidal gearing t; said shaft carrying a stepped cone pulley o adapted to be connected with a source or' power, to be driven thereby. The reel s has secured to it a pulley s2 (Fig. 2) around which passes a belt ZL; and this belt It also passes around and drives a pulley g mounted at the other end of the frame on a shaft .o vlocated adjacent the unwinding reel y'.V The shaft c Ahas secured to ita trictional wheel g which rietionally drives a eed roll a having a peripheral groove` to receive therein the" periphery or said wheel g and', also, that of a lower feed roll e, between which rolls the wire z' passes from reel j; the upper roll a being loosely mounted in a pair of arms Z) pivotedto shaft e, and beingpressed against the` roll e a spring if, avnd against roll g by springs y' as shown 1n nig. l.

Gn passing beyond the two coacting feed rolls a and e, the wire is led into and through the hanin'iering mechanism which is disposed within a case 7c (Figs. l and 3) mounted upon the trame CZ. rlhis mechanism comprises a pair of hammers Z and Z arranged in suitable holders or carrier blocks m and m which are mounted on one eir-A tremity of a hollow shai't 'a driven by a pulley o Jfrom a source of power.. rThe bloclrs m and m are provided at their outer ends with impact rollers j) and p, respectively, for coaction with an annular series of rollers g suitably mounted in the case fr.`

rlhe rollers p and p are designed to rest loosely in their seatsin the blocks m and WM so that they will have a tendency to move outward therefrom, due to the action of centrifugal force, when shaft n is rotating. During their movement with the blocks, these rollers p, p are caused to strike sharply against the successive roller g, the impact of the blows being transmitted to the blocks m, m and thence to the hammers Z7 i Z, which are thereby caused to act on the wire; it being understood that the latter is continuously fed forward by the rolls a and e.

rIhe hammers Z, Z, as previously stated, and as shown in Fig. 4;, are stepped crosssection; the various cylindrical parts of different diameters of the opening between the hammers and forming the steps being connected by conical parts. This special construction enables the hammers to distribute along their entire length the effort necessary :tor hammering the material, and also acts to prevent the hammers from pushing back the material in opposition to its or ward feed movement. As soon as the material advances, it is, at each blow of thevhammer, at first seized at each angle formed by a fthe hammered Wire, indicated at z", is led through, a draw-plate 1", the opening 1in.

which is disposed coaxial with the hollow shaft ze claim as our invent-ion z*V I. In a Wire-drawing machine ing very Ycoarsenvvire once'- to very line Wire, thefeo-inliinationof a pair of coaching hammers having a Vseries of reducing ringsformed inte steps dilering vonly silglitly in diam-eter and- Coniiected oyv conical Aintermediate portions adapted to take a irm for reducgrip on they Wire; a Wire-feeding` mech- Y anism; and opera-ting means for the 'hammers. v Y 1 2.' In a Wire-reducing machine, the Vcombination" of a 'pair "of rotating co'atiiigj hammers between which Jche material to he treated is 'ed, said hammers having,` stepped Working faces, and the successive steps thereof being connected by conical portions; afeeding` mechanism for said material;l operating means for the' hammers.; and a salie` up device adapted toivithdraw therediiced l Wire from the hammers. Y Y Y c lil-testimony whereof We ,aii oiirf signatures. v

LOUis GUsiAvs BRGET, c PAUL ALBERT BRGUM. 

